Oil burner



Sept. 1, 1931. I M, LO PF 1,821,654

OIL B RNER Filed April 21, 1928 2 Sheets-Sheet 2 w 4 g 2 v M317 orne c2 7 Patentedsept. 1, 1931 unirso STATES:

PATENT OFFICE? CHARLES Iii. LOEPFE, 0F ST. LOUIS, MIIIISSO'IiTllEtL ASSIGNOB, TO COTTONWOOD' FIBER COIvIPANY, OF ST. LGUIS, -MI5SO'URI, A CORPORATION OF MISSOURI I OIL BURNER Application filed April 21,

This invention relates to oil burners.

An object of the'invention is toprovide an improved oil burner having a pipe for conducting oil toward the burner arranged in a novel relationship so that the oil will be subjected to the heat'of the burner and more efficiently vaporized for combustion.

Another object of the invention is to provide an oil burner having an improved valve device for controlling and regulating the same. i

provements and advantages herein disclosed, reference being made to the'drawings in which Fig. 1 is a-plan view of my improved burner.

Fig. 2 is a front side elevation.

Fig. 3 is a sectional view approximately on the line 33 of Fig. 1.

Fig. 1 is an enlarged sectional view show ing one of the burner openings and its controlling disc on the inclined front side of the burner.

Fig. 5 is an enlarged sectional view showing one of the burner openings through the top of the burner and the manner in which the disc is held in position.

Fig. 6 is an enlargedsectional view approximately on the line 6-6 of Fig.1 showing the construction or the valve. p

Fig. 7 is across, sectional view 'approxi mately on the line 7.7 ofFig. 6.

detail view of the Fig. 8 isan enlarged valve.

Fig. 91s adetail View partly in section showing the screen strainer device for the oil.

Fig. 1'0-is a cross sectional view on the As shown, the invention is supported be tween the side walls 1 and 2 of a frame. The burner proper comprises a hollow member including upwardly diverging bottom walls 3"Ero1n the upper edges of which the upwardly converging side walls 4 extend to integral union with. an approximately horizontal-top wall 5 and with an end wall 6 having a gas inlet opening 7 to the inside of the enclosure formed by said walls. The

192's. seen no. 271,690.

wall 5 and having a notch 11, the bottom.

of which is in continuation of the upper surface of the top wall 5 and which notch opens toward the inclined wall 9. The top wall 5 is formed with a horizontal series of holes 12 around each of which rises a flange 13, which flanges are integral with the top wall 5 of the burner. Each hole 12 is also surrounded by a shoulder 14, and upon the shoulderv 14 within each hole and within each flange 13 a disc 15 is seated. The

- flan'ges13 are rolledfor swaged upon the edges of the discs 15 (Fig. 5), thereby rigidly securing and retaining said discs in position.

The inclined front wall 1 is formed with a longitudinal series of small outlet openings 16 (Figkl) forming communications 18 are rolled or swaged upon the "edges of the burner discs 19,-thus rigidly securing and retaining said discs in position and leaving the enlarged concavities 17 at the inner sides of said dlscs having communication with the interior of the burner dej vicethrough theholes 16. These burner discs 19 are arranged ina novel relationship to the burner discs 15 as will be readily understood by reference to Fig.1 wherein it will be seen that the flange 10 above each of theburner discs 19 has a notch 20 extending downwardly to the surface of the top wall 5. combustion; and ignition of the gas pass- This obviously facilitates ing from the burner discs 19, whereby the oil passing to the apparatus is subjected to heat. I

Similarly the inclined wall 9 is equipped with a disc 21in all respects similar to the discs 19 and likewise seated in a con-' cave recess having a restricted opening to 'extends approximately horizontally slightly 'cleaning the oil pipes.

the inside of the device. Ignition of the gas passing from the burner disc 21 is assured because of the presence of the notch 11 adjacent to the disc 15 at the end of the series in the top wall. All of the discs 15,

19 and 21 have numerous holes through.

which the gas passes.

Oil is supplied to the device through a pipe or tube 22 extending under the burner device above described and opening upwardly into the lower end of a vertical pipe 23 into a pipe 24 enclosing a roll of screen 25 whereby the oil is strained and freed from impurities. The pipe 24 has a detachable end section 26 'to which the screen is secured and which may be detached to withdraw the screen for purposes of cleaning and repair. The pipe 24 is supported on frame members 27 formed integral or rigid with the burner unit and above and to the front of the burner discs 19 so that the strained oil passing through said pipe 24 is subjected to the intense heat of the burner. The end of the pipe 24 is connected to one arm of a fourway fitting 28, one arm of which has a removable cap 29 and another arm of which has a detachable connection 30, which parts are made detachable in order to facilitate From the fourth arm of the four-way fitting 28 a pipe section 31 extends across slightly above and adjacent to the end burner disc 21 so that .the oil passing through said pipe section '31 from the pipe 24 remains sub ected to the heat of the burner.

The pipe 31 opens into a hollow member 32 having at its outer end a tapered threaded extension 33 and at its inner end a disc 34 having a large central hole and an annular series of restricted holes 35. A. member 36 is screwed onto the end of the hollow member 32 in whlch the disc 34 1s .mounted and in its outer end has a conicalrecess 37 formed in axial ahnement with the large central hole through the disc 34 and having its apex opening into a small 2 gas outlet 38. The outer end of the memthe burner.

through ber 36 is beveled and fits closely within 'a correspondingly shaped recess in the end may be operated.

the rod 42 and has a rounded extremity insertable within and withdrawable from the concave recess 37 to cooperate with the machined wall of said recess to control and regulate the passage of gas. A valve element 44 is screwed into the end of the valve body 43 and includes a needle valve portion 45 at its outer end which is united with the main element 44 by a conical portion 46. When the valve is completely closed the rounded machined end of the valve body 43 seats against the wall of the recess 37 while the conical portion 46 contacts with the apex portion of the conical recess 37 and the needle valve 45 extends throughthe restricted opening 38. It will be seen that by operation of the rod 42 to open and to close this valve the needle valve part 45 will keep the opening 38 open and prevent it from becoming clogged.

The outer end of the valve rod 42 extends through and beyond the extension 33 into a fitting 47 and through a hole in a partition 48 in said fitting. At the outer side of said aartition 48 in the fitting 47 the valve rod 42 has swivel connection 49 with a valve operating device 50. The valve operating device 50 has an enlarged threaded portion 51 screwed within a threaded opening in a fixture 52 attached to the outer end of the fitting 47 and is equipped on its outer end with a handle 53 whereby said device This swivel connection 49 whereby the operating device 50 is connected with the rod 42 constitutes a highly important feature of the invention, since the rod 42 is positively operated thereby, but not subjected to any lateral strains or stresses and hence does not become jammed or distorted, but will operate freely under nearly all conditions of use of the burner. V

The chamber 36 is located adjacent to a burner outlet disc 54 so that most of any oil which might become trapped in said chain her will be vaporized and caused to pass on to the burner. A function of the disc 54 is to subject the chamber 36 to the heat of the flame at said disc 54 in order to vaporize any oil that might pass into said chamber 36 from the connections previously described. As will be seen by reference to Fig.6 of the drawings, the chamber 36 may receive and contain any oil passing thereto from the hollow member 32. As shown in Fig. 1, the chamber 36 is adjacent to the disc 54 so that the heat of the flame at the disc 34 will be appliec directly against the chamber 36 to effect vaporization. of oil received and contained in said chamber 36.

A dial plate 55 is clamped between the fixture 52 and the fitting 47 and may be read with respect to the position of the handle 43 to indicate generally the positions of the valve. 7 V

A handle 56 is provided for operation and A pan 59 maybe mounted at one end of the device below the pipes 26 and 31 and below the element 32 for use as a receptacle to contain a Wick element 60 designed ,burner.

and arranged to be impregnated with combustible liquid supplied thereto through pipes 61 from a cup 62. WVhen the wick element 60 becomes saturated with the combustible liquid it may be ignited to heat the pipes 26 and 31 and the element 32 so as to ignite the oil passing therethrough toward the burner. After the gas thus created becomes ignited as it passes from the burner the wick may be extinguished, as the burner is then selfcontrolled=.

In use, the wick 60 is permanently ignited to heat and vaporize oil passing to the The valve handle 53 is then opened to permit a desired amount of gas to pass to the burner discs for ignition. By adjustinent and regulation of the closure 57 a proper mixture of air and gas may be obtained. The pipes 26 and 31 will be kept hot by ignition of gas passing from the discs 19 and 21 and any oil passing into the chamber 36 will be vaporized bythe flame at the burner disc 54. The valve is easily operative at all times and does not become jammed or distorted to such an extent that it is difiicult to operate, since the swivel connection 4:9, maintains the parts 42 and in conditions of easy operation.

face of said top wall, perforated gas outlet discs secured in one of said inclined side walls below said notches, perforated discs secured in said top wall, a pipe extending adjacent to the erforated discs in said side wall, connections for'conducting gas from said pipe into said enclosure, and a valve in said connections controlling the passage of gas from said pipe to said connections.

2. In a gas burner, an enclosure having a i top wall and inclined side walls, an upwardly extending flange around said top wall having notches therein extending to the surface of said top wall, perforated gas outlet discs secured inone of said inclined side walls below said notches, perforated discs secured in said top wall, a pipe extending adjacent to the perforated discs in. said side wall, connections for conducting gas from said pipe into said enclosure, a valve in said: connections controlling'the passage'of gas from" said pipe to said connections, and means for regulating admission of air to said connections. s q

3. A gas burner comprising. an enclosure having side walls and a top wall, a series of burner discs in said top wall, a series of burner'discs in one of said side walls, an in clined wall beyondione end of said top-wall;

extending at an angle from said first pipe and adjacent to'said last named burner disc,

a device for conducting gas into said enclosure, connections for conducting gas from said last named pipe to said device, and a valve controlling passage of gas fromzsaid last named pipe to said device.

4. A gas burner comprising an enclosure having side walls and a top wall, a series of burner discs in said top wall, a' series of burner discs 111.0116 of said SlClG walls, a

burner disc near one end of said enclosure, pipe connections extending ad acent to sald discs in said side wall and to said disc near one end of said enclosure, a device for conducting gas into said enclosure, connections for conducting gas from said pipe conneci tions to said device, a valve controlling passage of gas from said pipe connections to said device, a chamber for trapping oil passing from said connections to said device, and a burner disc'in said enclosure adjacent to said chamber.

5. A11 oil burner comprising an enclosure for gas having gas outlet openings through one lateral side and also having outlet 7 openings through the top, an oil conducting pipe supported adjacent to said openings through the lateral sides and [subjected to the flames of the burning gasat said last named openings, a pipe at the opposite side of said enclosure from said first pipe and opening into said enclosure, a device opening into one end of said second pipe for admittinggas thereto,a pipe extending transversely aboveone end of said enclosure adjacent to one of said openings top for conducting gas from said first pipe to said. device and being subjected to the heat of" the burning gas at said last named opening, and a valve mounted in said device controlling passage of gas therefrom to for gas having gas outlet openings throughy through the one. lateral side and also having gas outletI openings through the top, an oil conducting pipe supported approximately parallel with one side of said. enclosure and subjecteo to the flames of the burning gas at said openlngs through said lateral side of said en closure, a hollow member near the opposite" islde of said enclosure trom said pipe a pipe valve controlling passage of gas from said chamber to said last named pipe.

7. An oil. burner comprising an enclosure for gas having gas outlet openings in its upper side and also having gas outlet openings through one lateral side, an oil conducting pipe supported near one side of said enclosure and subjected to the heat of the burning gas issuing from said lateral side openings, a pipe supported near the opposite side of said enclosure and opening into one end of said enclosure, means for con ducting gas from said first pipe to said second pipe near the opposite end of said enclosure from which said second pipe opens into said enclosure, a pipe extending angularly from said first pipe to said means and transversely of the axis of said enclosure, and a valve controlling passage of gas from said first pipe into said second pipe.

8. An oil burner comprising an enclosure for gas having gas outlet openings in its upper side and having an inclined Wall at one end provided With a gas outlet opening and also having lateral gas outlet openings, an oil conducting pipe supported at one side of said enclosure and subjected to the heat of the burning gas issuingtrom said lateral openings, a pipe supported near the opposite side of said enclosure and opening into the end of said enclosure opposite from said inclined wall, a branch pipe extending from said first pipe transversely above said inclined wall adjacent-to said opening in said inclined wall, and means controlling passage of gas from said branch pipe to said second pipe.

9. An Oll burner comprising an enclosure for gas having gas outlet openings in its upper side and having an inclined Wall at one end provided with a outlet opening and also having lateral gas outlet openings, an oil conducting pipe supported at one side of said enclosure and subjected to the heat of the burning gas issuing from said lateral openin s, a pipe supported near the opposite si e of said enclosure and opening into the end of said enclosure opposite from said inclined wall, a branch pipe extending from said first pipe transversely above said in- 'clined wall adjacent to said opening in said inclined wall, a hollow member receiving gas from said branch pipe, a chamber forming communication from said hollow member to said second pipe, a. perforated disc controlling. passage of gas from said hollow member to said chamber, and a valve controlling passage of gas from said chamber to said second pipe.

CHARLES M. LOEPFE. 

